Detroit Pistons Bad Boy John Salley decided to be a vegetarian in 1991 and will visit Metro Detroit next month to promote the vegan lifestyle.Associated Press

DETROIT, MI -- Michigan's largest vegan organization is getting help from a former Detroit Pistons Bad Boy to promote a movement that will take over Novi's Suburban Collection Showplace on April 13.

If you're interested in the vegan lifestyle, then check out Veg Michigan's VegFest2014, an event that will include an appearance from John "Spider" Salley, along with actress Daryl Hannah and other experts on plant-based nutrition.

Salley then, according to the Times, tweaked his diet while with the Pistons and took advice from a Detroit nutritionist who suggested he eliminate fried foods and adopt a macrobiotic diet (grains and vegetables).

Now he's strictly a vegan, a person that doesn't eat dairy foods in addition to animal products.

“I’m eating raw,” Salley told the Times. “And I make all my food with no sugar, no salt and no oil.”